What is the primary purpose of wheel chocks?

What is the primary purpose of wheel chocks?

• A. To stabilize the wheel for lifting
• B. To measure distance
• C. To prevent wheel rotation while parked
• D. To prevent vehicle movement

Answer: (D)

Wheel chocks are used to keep a vehicle from moving by blocking the wheels. They’re wedges placed against the wheels and the ground so that gravity or external forces can’t push the vehicle forward or backward, which is especially important when the vehicle is on a slope or you’re working nearby. This safety function is distinct from lifting or stabilizing the vehicle for maintenance, and they aren’t used to measure distance. For best effect, place the chocks against the downhill wheels (and use them as needed on other wheels that could roll) with the parking brake engaged when possible, and remove them only after you’re ready to move the vehicle.

Wheel chocks are used to keep a vehicle from moving by blocking the wheels. They’re wedges placed against the wheels and the ground so that gravity or external forces can’t push the vehicle forward or backward, which is especially important when the vehicle is on a slope or you’re working nearby. This safety function is distinct from lifting or stabilizing the vehicle for maintenance, and they aren’t used to measure distance. For best effect, place the chocks against the downhill wheels (and use them as needed on other wheels that could roll) with the parking brake engaged when possible, and remove them only after you’re ready to move the vehicle.